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Is Phillips 66 Stock Worth Buying Despite Its Premium Valuation?
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Key Takeaways
Phillips 66 trades at an EV/EBITDA of 6.84X versus the industry's 5.63X, reflecting a valuation premium.
PSX's Q3 refining margins rose to $38 per barrel, while adjusted Refining earnings climbed to $6.06B.
PSX targets mid-single-digit annual Midstream EBITDA growth, with 2026 earnings expected to surge 422.2%.
Phillips 66 (PSX - Free Report) is currently considered expensive on a relative basis, with the stock trading at a trailing 12-month Enterprise Value to Earnings Before Interest, Taxes, Depreciation and Amortization (EV/EBITDA) multiple of 6.84X, representing a premium to the broader industry average of 5.63X. Such a premium valuation often reflects investors' confidence in a company's growth prospects and underlying fundamentals. HF Sinclair Corporation (DINO - Free Report) and Delek US Holdings (DK - Free Report) , operating in the same space, are trading at EV/EBITDA multiples of 2.94X and 5.37X, respectively.
Image Source: Zacks Investment Research
However, this elevated valuation warrants a closer examination of Phillips 66's refining performance, expanding midstream operations and earnings growth potential to determine whether the premium is justified.
Will PSX's Refining Margins Remain Strong?
Phillips 66 continues to benefit from favorable global refining conditions, supported by tight fuel inventories and geopolitical disruptions. In the third quarter of 2026, the company's composite 3:2:1 market crack spread surged to $60.17 per barrel from $23.64 a year earlier, reflecting low global product inventories, particularly diesel, and disruptions to refined-product supplies.
During its third-quarter earnings call, management highlighted the wars involving Iran and Ukraine as important supply-side factors, alongside Russian export flows and Chinese fuel export quotas. Strong winter diesel margins, favorable jet fuel pricing and wider discounts on heavy Canadian crude could continue supporting refining profitability into late 2026 and potentially 2027.
However, easing geopolitical tensions, recovering refined-product supplies or weakening demand could moderate crack spreads. Nevertheless, the current refining environment remains supportive of PSX's earnings potential.
Phillips 66's improving refining efficiency and favorable feedstock positioning reinforce its earnings potential. Realized refining margins increased to $38 per barrel in the third quarter of 2026 from $24.08 in the preceding quarter, lifting adjusted Refining earnings to $6.06 billion from $3.09 billion.
Refinery utilization reached 98%, while clean product yield stood at 86% and distillate yield achieved a third-quarter record of 41%. These improvements demonstrate PSX's ability to maximize production efficiency and capitalize on favorable refining spreads.
The acquisition of the remaining WRB Refining interest also generated more than $50 million in annual operational and commercial synergies. Higher throughput, stronger product yields and integration efficiencies should support profitability and cash generation. Moreover, the company's substantial Canadian crude exposure offers additional upside from wider heavy-crude discounts.
Image Source: Phillips 66
PSX's Diversified Business Model Supports Long-Term Growth
Although a leading refiner, Phillips 66, unlike many of its refining peers, has diversified its operations across midstream and chemicals. This diversified business model provides additional earnings sources and reduces the company's dependence on refining margins.
Phillips 66's expanding midstream infrastructure offers a tangible opportunity for sustained earnings growth and greater cash flow diversification. Third-quarter 2026 NGL fractionation volumes reached approximately 1 million barrels per day, while wellhead volumes totaled 4.6 billion cubic feet per day.
The Coastal Bend pipeline expansion is expected to begin contributing volumes in the fourth quarter of 2026 and reach 350,000 barrels per day in early 2027. Additional investments include the Iron Mesa and Zeus gas plants, the Corpus Christi fractionator scheduled for 2028 and the Western Gateway Pipeline targeted for 2029.
These projects should expand processing and transportation capacity, support higher throughput and improve integration across the NGL value chain. Management targets mid-single-digit annual adjusted EBITDA growth in Midstream through the decade, potentially strengthening recurring cash generation and long-term earnings visibility.
Phillips 66 delivered an exceptional performance in the third quarter of 2026, reporting adjusted earnings of $14.08 per share, exceeding the Zacks Consensus Estimate of $11.97 by 17.63%. Revenues of $51.5 billion surpassed the consensus estimate of $33.72 billion by 52.73%.
The impressive results highlight the company's ability to capitalize on favorable refining conditions while maintaining operational efficiency.
The strong operating environment and improving refining capabilities are also reflected in the company's earnings expectations. The Zacks Consensus Estimate for PSX's 2026 earnings stands at $33.63 per share, implying a substantial 422.2% year-over-year increase. Such robust expected earnings growth provides fundamental support for the stock's valuation.
Image Source: Zacks Investment Research
PSX's Stock Performance Versus Industry Peers
Phillips 66 has delivered impressive stock market gains. Over the past year, PSX shares have surged 79.1%, outperforming DINO's 78.6% rally and DK's 50.8% gain.
However, the stock has lagged the sub-industry's 100.6% rally. This relative underperformance suggests that PSX has not fully participated in the broader refining industry's rally despite its strong operating performance and improving earnings prospects.
Image Source: Zacks Investment Research
Is Phillips 66 Stock Worth Buying Now?
Despite trading at a premium to its industry and peers, Phillips 66's favorable refining economics, improving operational efficiency and expanding midstream infrastructure strengthen its investment appeal.
The company's ability to generate substantial refining earnings while investing in businesses with comparatively stable cash flows offers a combination of near-term profitability and longer-term growth potential. Moreover, substantial expected earnings growth and the continued expansion of midstream infrastructure provide fundamental support for its elevated valuation.
Hence, despite its relatively expensive valuation, investors should consider buying the Zacks Rank #1 (Strong Buy) stock now, given its strong earnings momentum, supportive refining environment and visible midstream growth opportunities.
View the Zacks #1 Rank List
Image: Bigstock
Is Phillips 66 Stock Worth Buying Despite Its Premium Valuation?
Key Takeaways
Phillips 66 (PSX - Free Report) is currently considered expensive on a relative basis, with the stock trading at a trailing 12-month Enterprise Value to Earnings Before Interest, Taxes, Depreciation and Amortization (EV/EBITDA) multiple of 6.84X, representing a premium to the broader industry average of 5.63X. Such a premium valuation often reflects investors' confidence in a company's growth prospects and underlying fundamentals. HF Sinclair Corporation (DINO - Free Report) and Delek US Holdings (DK - Free Report) , operating in the same space, are trading at EV/EBITDA multiples of 2.94X and 5.37X, respectively.
However, this elevated valuation warrants a closer examination of Phillips 66's refining performance, expanding midstream operations and earnings growth potential to determine whether the premium is justified.
Will PSX's Refining Margins Remain Strong?
Phillips 66 continues to benefit from favorable global refining conditions, supported by tight fuel inventories and geopolitical disruptions. In the third quarter of 2026, the company's composite 3:2:1 market crack spread surged to $60.17 per barrel from $23.64 a year earlier, reflecting low global product inventories, particularly diesel, and disruptions to refined-product supplies.
During its third-quarter earnings call, management highlighted the wars involving Iran and Ukraine as important supply-side factors, alongside Russian export flows and Chinese fuel export quotas. Strong winter diesel margins, favorable jet fuel pricing and wider discounts on heavy Canadian crude could continue supporting refining profitability into late 2026 and potentially 2027.
However, easing geopolitical tensions, recovering refined-product supplies or weakening demand could moderate crack spreads. Nevertheless, the current refining environment remains supportive of PSX's earnings potential.
PSX's Refining Efficiency Strengthens Profitability
Phillips 66's improving refining efficiency and favorable feedstock positioning reinforce its earnings potential. Realized refining margins increased to $38 per barrel in the third quarter of 2026 from $24.08 in the preceding quarter, lifting adjusted Refining earnings to $6.06 billion from $3.09 billion.
Refinery utilization reached 98%, while clean product yield stood at 86% and distillate yield achieved a third-quarter record of 41%. These improvements demonstrate PSX's ability to maximize production efficiency and capitalize on favorable refining spreads.
The acquisition of the remaining WRB Refining interest also generated more than $50 million in annual operational and commercial synergies. Higher throughput, stronger product yields and integration efficiencies should support profitability and cash generation. Moreover, the company's substantial Canadian crude exposure offers additional upside from wider heavy-crude discounts.
PSX's Diversified Business Model Supports Long-Term Growth
Although a leading refiner, Phillips 66, unlike many of its refining peers, has diversified its operations across midstream and chemicals. This diversified business model provides additional earnings sources and reduces the company's dependence on refining margins.
Phillips 66's expanding midstream infrastructure offers a tangible opportunity for sustained earnings growth and greater cash flow diversification. Third-quarter 2026 NGL fractionation volumes reached approximately 1 million barrels per day, while wellhead volumes totaled 4.6 billion cubic feet per day.
The Coastal Bend pipeline expansion is expected to begin contributing volumes in the fourth quarter of 2026 and reach 350,000 barrels per day in early 2027. Additional investments include the Iron Mesa and Zeus gas plants, the Corpus Christi fractionator scheduled for 2028 and the Western Gateway Pipeline targeted for 2029.
These projects should expand processing and transportation capacity, support higher throughput and improve integration across the NGL value chain. Management targets mid-single-digit annual adjusted EBITDA growth in Midstream through the decade, potentially strengthening recurring cash generation and long-term earnings visibility.
PSX's Strong Earnings Performance & Growth Expectations
Phillips 66 delivered an exceptional performance in the third quarter of 2026, reporting adjusted earnings of $14.08 per share, exceeding the Zacks Consensus Estimate of $11.97 by 17.63%. Revenues of $51.5 billion surpassed the consensus estimate of $33.72 billion by 52.73%.
The impressive results highlight the company's ability to capitalize on favorable refining conditions while maintaining operational efficiency.
The strong operating environment and improving refining capabilities are also reflected in the company's earnings expectations. The Zacks Consensus Estimate for PSX's 2026 earnings stands at $33.63 per share, implying a substantial 422.2% year-over-year increase. Such robust expected earnings growth provides fundamental support for the stock's valuation.
PSX's Stock Performance Versus Industry Peers
Phillips 66 has delivered impressive stock market gains. Over the past year, PSX shares have surged 79.1%, outperforming DINO's 78.6% rally and DK's 50.8% gain.
However, the stock has lagged the sub-industry's 100.6% rally. This relative underperformance suggests that PSX has not fully participated in the broader refining industry's rally despite its strong operating performance and improving earnings prospects.
Is Phillips 66 Stock Worth Buying Now?
Despite trading at a premium to its industry and peers, Phillips 66's favorable refining economics, improving operational efficiency and expanding midstream infrastructure strengthen its investment appeal.
The company's ability to generate substantial refining earnings while investing in businesses with comparatively stable cash flows offers a combination of near-term profitability and longer-term growth potential. Moreover, substantial expected earnings growth and the continued expansion of midstream infrastructure provide fundamental support for its elevated valuation.
Hence, despite its relatively expensive valuation, investors should consider buying the Zacks Rank #1 (Strong Buy) stock now, given its strong earnings momentum, supportive refining environment and visible midstream growth opportunities.
You can see the complete list of today’s Zacks #1 Rank stocks here.